JPH01280151A - Roof support material and its mounting structure - Google Patents

Abstract

PURPOSE:To avoid a space member and enable a strong bed to be composed, by forming a rib expanded downward, on the base plate of a bearing member, and by filling up a space generated by the existence of a connecting reinforcement plate when the base plate is mounted and is firmly fitted on a horizontal beam, with the rib. CONSTITUTION:A bearing member is formed by forming a rib 3 expanded under a longish base plate A, at a proper section and by fitting metal bearings B at specified intervals in the longitudinal direction of the base plate A. The bearing member is mounted and is firmly fitted on a horizontal beam 16 confronted with the external side of the top section of a steel frame structure D, and shifted positionally from a connecting plate 17 at the corner section of the steel frame structure D, the lower end of the rib 3 of the base plate A is butted to the upper section of the horizontal beam 16. Accordingly, a space between the horizontal beam 16 and the base plate A, generated by the existence of the connecting reinforcement plate 17 can be filled up with the rib 3, and the base plate A can be prevented from being deflected.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a roof support material that can significantly save on the roof substructure and strengthen it in steel frame structures using steel frame construction methods and frame construction methods, and its support material. Regarding the mounting structure.

(Conventional technology and its problems) Conventionally, in steel structures constructed using the steel construction method or frame construction method, cross beams and end columns (corner locations of steel structures) are fixed by welding or other means using connection reinforcing plates. The welding and other fixing was done at the factory or on site.The thickness of the connecting reinforcing plate was several inches, so there was a
When the base plate with the bracket attached is placed over the entire length, there are reinforcing plates for connection on both sides, so
In the middle, there was a gap equal to the thickness of the connecting reinforcing plate. Because of this gap, the base plate flexes when subjected to a roof load, which has been viewed as a problem in terms of roof stability and strength.

For this reason, in the past, a spacer material equal to the thickness of the reinforcing plate was interposed in the gap. That is, a spacer material was previously polymerized and fixed to the lower surface of the base plate, and this was attached to the cross beam of the steel structure.

The spacer material has a long length, which is equivalent to the length of the cross beam of a steel frame structure, and has the disadvantage that it adds a considerable amount of weight to the house and door, and is also relatively expensive.

Another problem is that when used in large quantities for housing-related purposes, the price can reach hundreds of millions. Therefore, the challenge was to eliminate the spacer material and develop a strong base structure.

[Means to solve the problem]

Therefore, the inventor worked diligently to solve the above problem.

As a result of repeated research, the present invention has been developed to support a roof by forming ribs bulging downward on a long base plate at appropriate locations, and attaching metal fittings at predetermined intervals in the longitudinal direction of the base plate. Alternatively, a rib protruding downward from a long base plate is formed at an appropriate location, and a bolt head recess with the same depth as the rib is formed at a predetermined interval downward in the longitudinal direction of the base plate. Further, the bolts 9 are detached from the recessed portions and used as roof support members to which metal fittings are attached at predetermined intervals, and ribs protruding downward from the long base plate are formed at appropriate locations.
A support member with brackets attached at predetermined intervals in the longitudinal direction of the base plate is placed and fixed on the opposing cross beams on the outside of the top of the steel structure, and is used to connect the corner points of the steel structure. By removing the reinforcing plate and attaching the lower edge of the base plate to the cross beam, we created a structure for attaching the roof support material.
This invention solves the above-mentioned problems by making it possible to significantly save and strengthen the roof base structure in a steel structure constructed using the steel frame construction method or the frame construction method.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 21.

The support member in the present invention is composed of a base plate A and a receiving metal fitting B. First, the base plate A is elongated in its longitudinal direction, and has side pieces 2, 2 formed at both ends in the width direction of a substantially flat main surface l. The cough side pieces 2.2 are formed upwardly at one end of the main surface 1 and downwardly at the other end. In addition, the width of the main surface l is the width of the cross beam 16, which will be described later.
corresponds to the width of

A rib 3 bulging downward is formed on the main surface l. The rib 3 is formed in a bulge below the main surface I so as to have a thickness equal to the thickness of a reinforcing plate 17 (to be described later).

As a specific example of the ribs 3, as shown in FIG. 10, the ribs 3 are formed to be elongated in the longitudinal direction in parallel to both ends of the main surface 1 in the width direction. The rib 3 is often formed into an arcuate cross-sectional shape (see Fig. 7), but other
There are also embodiments formed in a shape or a reverse gate shape (see FIGS. 8 and 9).

The rib 3 is not formed within an appropriate length from the edge of one end in the longitudinal direction of the main surface l toward the center of the main surface 1 (see FIG. 3). This is because the connection reinforcing plate 17 is located at a location where no.

In this way, at one end of the main surface 1 in the longitudinal direction,
Although the rib 3 is not formed, there are two examples of the state of the rib 3 at the other end in the longitudinal direction of the main surface 1.
As an example, as shown in FIG. 3, there are no ribs 3 at appropriate intervals toward the center in the longitudinal direction.

In the second embodiment, a rib 3 is formed up to the other end edge in the longitudinal direction of the main surface I (see FIG. 11), and the length in the longitudinal direction of the base plate A is the length of the steel frame. The length in the longitudinal direction of the cross beam 16 constituting the top of the structure is equal to the length between the tracks.

Further, the base plate A of the second embodiment is used when the cross beams 16 at the top of the steel structure are particularly long in the longitudinal direction.

Next, bolt head recesses 4 are formed on the main surface 1 of the base plate A at appropriate intervals. Specifically, it is formed to protrude downward from the main surface l, and its depth is equivalent to the depth of the rib 3.

The bolt head four parts 4 have a substantially circular shape (fourth
(see figure), or square (see figure 12).

A through hole 4a is bored in the center of the bolt head recess 4, into which a threaded portion of a fastener such as a bolt can be freely inserted, and the head of the bolt abuts the bottom surface of the bolt head recess 4.

Reference numeral B denotes a receiving metal fitting, and in a specific embodiment thereof, a vertical portion 6 is formed below an example of the top surface portion 5, and a bottom portion 7 is formed from the lower end of the vertical portion 6. At both ends of the top surface portion 5 in the width direction (horizontal direction in FIG. 2), outwardly downwardly bent pieces 5a, 5a are formed.

Also, locking pieces 8, 8 are provided at the upper end of the vertical portion 6 and at both ends of the top surface portion 5 on the other side in the front-rear direction (the side opposite to the side on which the vertical portion 6 is formed). ... is formed (see Figure 17).

As another embodiment of the receiving metal fitting B, the band plate is formed in a trapezoidal mountain shape, consisting of a trapezoidal mountain portion 9 and a bottom portion 7, and a fixing device 9a such as a screw portion is provided at the top of the trapezoidal mountain portion 9. There are some things.

Furthermore, there is also an embodiment in which a stepped portion 9b is formed approximately at the center of the top of the trapezoidal chevron portion 9. The receiving metal fittings B are fixed on the main surface l of the base plate A at predetermined intervals so as not to come into contact with the bolt head recesses 4.

C is a roof, which is composed of roof plates C, , C, . . . . The roof plate CI has a chevron portion 11 lower than one end of the main plate 10 in the width direction, and a chevron portion 12 above the other end. The upper chevron portions 12 can be fitted into the lower chevron portions 11 of the adjacent roof plates C, , C. Specifically, as shown in FIG. 2, arc-shaped engaged parts 11a, 11a, and 12a.

12a is formed.

Then, the engaged portion 11a and the engaged portion 12a engage,
Furthermore, the engaged portion 11a of the lower chevron portion 2.

11a is engaged with the retaining piece 8 of the receiving metal fitting B (the receiving metal fitting B of the embodiment having the securing piece 8).

In another embodiment of the N root plate CI, the lower chevron portion 11 and the upper chevron portion 12 have a trapezoidal chevron shape, and the lower chevron portion 11
This is a type in which the upper chevron portion 12 overlaps with each other, and the receiving metal fitting B in which a fixing member 9a is formed on the top surface of the trapezoidal chevron portion 9 is also used.

Furthermore, in another embodiment of the roof plate C1, bent rising parts 13.13 are formed at both ends of the main plate 10 in the width direction, and one bent rising part 13 has a lower part 13a, and the other bent rising part 13 has a lower part 13a. The upper ridge portions 13b are formed, and the lower ridge portions 13a are formed respectively.
Then, the upper roof portion 13b is tightened and the roof C is constructed.

At this time, the receiving metal fitting B is one in which a stepped portion 9b is formed on the top surface of the trapezoidal chevron portion 9, and a hanger 14 is provided on the lower top surface formed by the stepped portion 9b.

D is a steel structure, which is composed of columns 15, cross beams 16, and the like. A connecting reinforcing plate 17 such as a gusset plate or a cover plate is fixed to the joint between the upper end of the column 15 and the end of the cross beam 16 by welding or the like.

In the present invention, the base plate A and the brackets B, B,...
When constructing the roof C using supporting materials consisting of the base plate A, the base plate A is attached to the opposing cross beams 16.
16 along the longitudinal direction.

At this time, there are reinforcing plates 17 for connection at the joints with the upper ends of the columns 15 at both longitudinal ends of the cross beams 16,
The 17 connecting reinforcing plates are placed on the longitudinal ends of the main surface l of the base plate A where the ribs 3 are not formed. Since the rib 3 is equal to the thickness of the connection reinforcing plate 17, the base plate A
The lower end of the rib 3 is always in contact with the upper surface of the cross beam 16.

When the cross beam 16 is long, two or more supporting members may be used (see Fig. 21). In this case, one longitudinal end of the base plate A of the supporting member is connected to the connecting reinforcing plate l'
One in which ribs 3 are formed up to one end of the main surface l in the longitudinal direction without being placed on T is used. in this way,
The sides on which the ribs 3 are formed up to the ends are butt-shaped, and the sides on which the ribs 3 are not formed are set on both end sides.

〔Effect of the invention〕

In the invention of claim 1, the ribs 3 that bulge downward on the elongated base plate A are formed at appropriate locations, and the base plate A
By making the base plate A a roof support material with mounting brackets B attached at predetermined intervals in the longitudinal direction, first of all, the base plate A can be formed from a relatively thin metal plate, and spacer materials are no longer required. Secondly, the mechanical strength of the base plate A can be improved, and thirdly, various properties regarding transportation, storage, and workability can be improved.

To explain these effects in detail, conventionally, when fixing the base plate A on the cross beam 16 at the top of a steel structure, the presence of a high-strength plate 17 for connection such as a gusset plate or a cover plate A gap is generated between the bottom surface of the base plate A excluding both ends and the top surface of the cross beam 16, and a reinforcing spacer material is provided in the gap, and this spacer material is generally referred to as a connecting reinforcing plate 17. They have the same thickness and are provided over the entire length of the lower surface in the longitudinal direction of the main surface 1 of the base plate A. The longer the base plate A becomes, the longer the spacer material is required, and the price per weight is reduced. Since it is a steel material determined by

However, in the present invention, since the base +ff1A has a rib 3 formed on its main surface 1 that appropriately bulges downward, the base plate A is attached to the cross beam 1 at the top of the steel structure.
5 The lower surface of the base plate A excluding both ends, which is generated due to the presence of the connection reinforcing plate 17 when it is placed and fixed on the base plate A,
A gap between the top surface of the cross beam 16 and the top surface of the cross beam 16 can be filled with the rib 3, and deflection of the base plate A at the gap location can be reliably prevented.

That is, in the present invention, since the ribs 3 serve as a spacer material, the spacer material can be eliminated, and the cost of the temporary base A itself can be reduced significantly. Furthermore, the ribs 3 improve the section modulus of the base plate A, resulting in superior mechanical strength. Furthermore, since the section modulus is increased by the ribs 3, the base plate A may be made of a relatively thin metal plate and weight reduction can be achieved.

As mentioned above, there are some methods that are simple in structure or structure but are effective.

Second, the base plate A has ribs 3 formed on the main surface 1, which has a feature of superior mechanical strength, which prevents the base plate A from being significantly deformed during transportation, so be careful when transporting it. It is not necessary and can be easily stored.

Further, during construction, since the metal fittings are fixed on the base plate A at predetermined intervals, the roof C can be constructed by simply installing the base plate A on the top of the steel structure.

In the invention of claim 2, bolt head recesses 4 having the same depth as the ribs 3 are formed at a predetermined distance downward in the longitudinal direction of the base plate A in the invention of claim 1, thereby making it possible to attach the bolt head to the cross beam 16. can be easily attached to the cross beam 16 without welding using fixing tools such as drill screws. In particular, there is an advantage that the bolt head of the fixing tool does not protrude above the main surface 1 of the base plate A, and the roof board CI can be installed without the bolt head or the like getting in the way.

As mentioned above, the ability to install the base plate A on-site without welding means that the already completed prefabricated unit room (including 9 tatami mats of wallpaper, etc.) can be installed using welding sparks.
This invention is also great in that it can prevent accidents such as accidental burning, and is also much better in terms of price.

In addition, in the invention according to claim 3, the supporting member according to claim 1 is arranged such that the supporting member according to claim 1 is connected to the opposite cross beams 16 on the outside of the top of the steel frame
Mounting structure of a roof supporting material in which the rib 3 of the base plate A is placed and fixed on the cross beam 16, and the rib 3 of the base plate A is brought into contact with the cross beam 16 by removing the connecting reinforcing plate 17. By doing so, the weight of the steel frame structure can be reduced, which in turn makes it possible to build a low-cost building.

That is, since the ribs 3 are formed on the base plate A, the spacer material is not required, so the weight of the spacer material is reduced, and the weight burden on the steel structure beam from the top can be reduced. Therefore, it can be constructed at a low cost.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view of the present invention with a roof, and FIG. 2 is a partially sectional front view of the present invention with a roof. FIG. 3 is a front view of the roof supporting material of the present invention, FIG. 4 is a plan view of FIG. 3, FIG. 5 is an end view as seen from the arrow V-■ in FIG. 4, and FIG.
FIG. 7 is an end view as seen from the arrows Vl, FIG. 7 is an end view as seen from the arrows in FIGS.
11 is a front view of another embodiment of the roof supporting material of the present invention, FIG. 12 is a plan view of FIG. 11, and FIG. 13 is a 12th embodiment of the roof supporting material of the present invention. Fig. 14 is a perspective view of Fig. 13, Fig. 15 is a front view during construction, Fig. 16 is a detailed view of the main part of Fig. 15, Fig. 17 is a partial plan view of an embodiment different from the figure. 18 is a partial perspective view of the present invention, FIGS. 18 and 19 are front views of another embodiment of the present invention, in which a roof is attached to a roof support member, and FIGS. 20 and 21 are views of a structure based on a steel structure FIG. A...Base plate, 3...Rip, 4...Bolt H recess, B...Bracket, D...Steel structure , 16...
Cross beam, 17... Reinforcement plate for connection. Patent applicant: Mitsumi Metal Industry Co., Ltd.■
■ School School -tsu A'7-

Claims (3)

[Claims] (1) A roof support material, characterized in that a long base plate has downwardly bulging ribs formed at appropriate locations, and metal fittings are attached at predetermined intervals in the longitudinal direction of the base plate. (2) forming a rib bulging downward on a long base plate at an appropriate location, and forming a bolt head recess with the same depth as the rib at a predetermined interval downward in the longitudinal direction of the base plate; A roof support material further comprising a receiving metal fitting detachably attached to the bolt head recess at a predetermined interval. (3) Ribs protruding downward from a long base plate are formed at appropriate locations, and supporting members to which brackets are attached at predetermined intervals in the longitudinal direction of the base plate are attached to the top of the steel structure. A roof supporting material characterized by being placed and fixed on the opposing cross beams on the outside, and by removing the reinforcing plates for connection at the corners of the steel structure and bringing the lower ends of the ribs of the base plate into contact with the cross beams. mounting structure.